Q848 (OECID: 0400066; BBL: 4034340001)
K-12 School in New York City, NY · 511 Seneca Avenue · 11385
At a glance
Q848 (OECID: 0400066; BBL: 4034340001) is a 18,000-square-foot K-12 school at 511 Seneca Avenue in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 80 out of 100 (grade B), a site energy-use intensity of 35.5 kBtu/ft² and 46 tCO₂e of greenhouse-gas emissions. That score is higher than 66% of the 2,052 scored K-12 school buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 80 (band B) |
| Site EUI | 35.5 kBtu/ft² |
| Source EUI | 49.7 kBtu/ft² |
| GHG emissions | 46 tCO₂e |
| GHG intensity | 2.6 kgCO₂e/ft² |
| Electricity | 38,604 kWh |
| Natural gas | 3,114 therms |
| Gross floor area | 18,000 sq ft |
| Source record | nyc:1634211:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 80 | ±0 | 35.5 kBtu/ft² | 46 tCO₂e |
| 2023 | 80 | +25 | 30.6 kBtu/ft² | 39 tCO₂e |
| 2022 | 55 | 49.1 kBtu/ft² | 54 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 511 Seneca Avenue
- City
- New York City
- State
- New York
- ZIP
- 11385
- Coordinates
- 40.70531, -73.91191
Within ~1 km
Nearby benchmarked buildings
- Wyckoff Heights Medical Centerscore 58
Hospital (General Medical & Surgical) · 458,778 sq ft
K-12 School · 307,200 sq ft
K-12 School · 211,200 sq ft
- Sr. Lucianscore 95
Multifamily Housing · 109,500 sq ft
K-12 School · 104,250 sq ft
- SR. LUCIAN APTSscore 92
Multifamily Housing · 100,700 sq ft
See also: most efficient in New York City · biggest emitters
How does Q848 (OECID: 0400066; BBL: 4034340001) compare with other K-12 school buildings in New York City?
The latest disclosures cover 2,301 K-12 school buildings in New York City, out of 48,310 buildings citywide. Q848 (OECID: 0400066; BBL: 4034340001)'s ENERGY STAR score of 80 compares with an average of 64 across the 2,052 that report a score; it scores higher than 66% of them and lower than 32%. Its site EUI of 35.5 kBtu/ft² is about 42% below the average of 61.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.6 kgCO₂e/ft² is about half of the group average of 4.8 kgCO₂e/ft².
At 18,000 sq ft, it is about 82% below the average floor area of 101,338 sq ft for those buildings. It was built in 1931, 22 years earlier than the group's average year built (1954). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has Q848 (OECID: 0400066; BBL: 4034340001)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Q848 (OECID: 0400066; BBL: 4034340001), covering report years 2022–2024. Its ENERGY STAR score went from 55 in 2022 to 80 in 2024 (+25 points); its best year on file was 2023, at 80. Site EUI moved from 49.1 kBtu/ft² (2022) to 35.5 kBtu/ft² (2024), a 28% decrease. Reported emissions went from 54 tCO₂e to 46 tCO₂e over the same span (down 15%).
What does an ENERGY STAR score of 80 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 80 means the building performs better than about 80% of its national peers. BuildingCensus bands the score into report-card grades; 80 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In New York City, 43% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Q848 (OECID: 0400066; BBL: 4034340001)'s 35.5 kBtu/ft² across 18,000 sq ft works out to about 0.6 billion Btu (187 MWh-equivalent) in 2024. Its source EUI of 49.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 38,604 kWh of electricity and 3,114 therms of natural gas for the year.
Which law requires Q848 (OECID: 0400066; BBL: 4034340001) to report its energy use?
Q848 (OECID: 0400066; BBL: 4034340001) reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:1634211:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More K-12 school buildings in New York City
- 342 - St Adalbert St Roch - School· 17,861 sq ft
- 9-10 Building· 17,813 sq ft · EUI 36.2 kBtu/ft²
- Q322 (OECID: 0401631; BBL: 4015710019)· 17,384 sq ft · score 36 (D)
- K813 (OECID: 0300037; BBL: 3011600001)· 17,340 sq ft · score 75 (B)
- Q876 (OECID: 0401217; BBL: 4035600004)· 16,160 sq ft · score 33 (D)
- R801 (OECID: 0500325; BBL: 5000160007)· 16,160 sq ft · score 93 (A)
- K-12 School buildings in New York City· 2,301 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is Q848 (OECID: 0400066; BBL: 4034340001)'s energy grade?
Q848 (OECID: 0400066; BBL: 4034340001) scores 80 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Q848 (OECID: 0400066; BBL: 4034340001) use?
Its 2024 site energy-use intensity was 35.5 kBtu/ft² (49.7 kBtu/ft² source) across 18,000 sq ft, including 38,604 kWh of electricity and 3,114 therms of natural gas.
What are Q848 (OECID: 0400066; BBL: 4034340001)'s carbon emissions?
Q848 (OECID: 0400066; BBL: 4034340001) reported 46 tCO₂e of greenhouse-gas emissions (2.6 kgCO₂e/ft²) for 2024.
Where is Q848 (OECID: 0400066; BBL: 4034340001)?
Q848 (OECID: 0400066; BBL: 4034340001) is at 511 Seneca Avenue, in New York City, New York 11385. Its coordinates are 40.70531, -73.91191 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Q848 (OECID: 0400066; BBL: 4034340001) and when was it built?
Q848 (OECID: 0400066; BBL: 4034340001) has 18,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as K-12 school.
Is Q848 (OECID: 0400066; BBL: 4034340001) covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Q848 (OECID: 0400066; BBL: 4034340001), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/q848-oecid-0400066-bbl-4034340001-53e59f29 (data as of October 2, 2026).